- \n
- The RFID solution<\/a> does not require a line of sight access to be able to read tags<\/a>. Still, the tag can also include a human readable data label (2 in 1).<\/li>\n
- Reader<\/a> and tag<\/a> communication are not\u202forientation\u202fsensitive.<\/li>\n<\/ul>\n
Security<\/strong><\/p>\n
- \n
- The tag can trigger security alarm systems if removed from its correct location.<\/li>\n
- Automatic scanning and data logging\u202fis\u202fpossible without human intervention.<\/li>\n
- Each tag can have a unique product code like standardized.<\/li>\n
- Each item can be individually labeled.<\/li>\n<\/ul>\n
Management<\/strong><\/p>\n
- \n
- Electronic Product Code (EPC-code) and still hold more information in an internal memory bank.<\/li>\n
- Tag internal data can be comprehensive \u2013 unique and common in parts \u2013 and is compatible with data processing in\u202fERP\u202fsystem.<\/li>\n
- The supporting data infrastructure can allow data retrieval and product tracking anywhere provided the reader is close enough to the tag.<\/li>\n
- System provides a high degree of security and product authentication \u2013 a tag with IC is more difficult to counterfeit than a simple printed barcode.<\/li>\n<\/ul>\n
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<\/p>\nRFID Business Benefits<\/h4>\n
The technical benefits of RFID<\/a> create the basis for real business benefits. When there\u2019s less risk of errors and when there\u2019s real-time information about how the asset is being used and where it\u2019s located.<\/p>\n
RFID<\/a> can increase the efficiency of processes and save money. The return on investment is the key issue when reviewing the general benefits of the system.<\/p>\n
The cost savings of an RFID<\/a> system are often based on the following facts:<\/p>\n
- \n
- An RFID<\/a> system can increase productivity \u2013 as less monitoring is needed and both goods and information are handled more efficiently.<\/li>\n
- An RFID<\/a> system makes it easier to respond to new circumstances as a result of information gained from the supply networks.<\/li>\n
- Less errors, higher reliability \u2013 no human intervention needed for reading the data.<\/li>\n
- Improved visibility and traceability \u2013 process monitoring, tracking of shipments and assets.<\/li>\n<\/ul>\n
How to select the right tag?<\/h4>\n
Confidex\u202ftags<\/a> are compatible with standard RFID<\/a> hardware.<\/p>\n
There is a huge variety of different kind of tags available with different properties. And remember, they all are compatible with any Gen2 reader. Reader devices and tags can be selected totally independently based on other requirements in your application.<\/p>\n
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<\/p>\nConfidex\u2019s\u202fproduct portfolio is composed of passive RFID tags<\/a>, which operate at UHF frequency band. Tags are compliant with ISO18000-6C standard, which is the equivalent to\u202fEPCglobal\u202fClass 1 Generation 2 \u2013standard (C1G2). This standard is widely adopted across the industry and there are multiple IC, reader, antenna, software and system providers in the market, which have a high level of inter-operability along the standard.\u202fThus\u202fConfidex\u202ftags<\/a> are compatible with most UHF RFID<\/a> hardware.<\/p>\n
Tag selection is easy up to this point. Gen2 is the right choice. Then it becomes more complicated. There is a huge variety of different kind of tags available with different properties. And remember, they all are compatible with any Gen2 reader. Reader devices and tags can be selected totally independently based on other requirements in your application.<\/p>\n
Electrical Viewpoint<\/h4>\n
Typically, the most important electrical parameter is the tag sensitivity, which defines the maximum operating distance. It is notable that stated reading distance is theoretical, open space reading distance and may be shorter due to the improper use of the tag or reader. On the other hand, it may be even longer due to multi-path propagation. UHF (Ultra high Frequency) tags<\/a> work in far field region. This is significantly different from older LF and HF RFID technologies<\/a>. All physical laws related to radio transmission apply and must be considered in system design and tag selection. Tag<\/a> includes an antenna<\/a> with a certain gain and radiation pattern. In order to achieve maximum performance, on-metal tags\u202fin particular need\u202fcareful installation.<\/p>\n
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<\/p>\nLocal radio transmission regulations define the frequencies for RFID<\/a>. Some tags (especially on-metal tags) are optimized to a certain frequency band. In closed loop applications, global functionality is not necessarily needed, but if the tagged item is shipped from one continent to another, a wide band tag design is needed.\u202fConfidex<\/a>\u202foffers tags for all UHF frequency bands used for RFID<\/a> globally. The most up to date list of frequencies used in different countries can be found from\u202fEPCglobal\u202fwebsite.<\/p>\n
The next thing to consider is the amount of memory and type required. Some tags have the 96-bit EPC identification number while others also have user memory up to 512-bit, which can be used freely. Depending on the IC type, IC can also have a tag identifier (TID)\u202fwhich is non-alterable unique identification number for\u202feach and every\u202fpiece of IC. It\u2019s worth keep in mind that EPC identification number is alterable if not explicitly locked.\u202fConfidex<\/a>\u202fcan lock the tags if needed (see more from:\u202fpersonalization services)<\/p>\n
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<\/p>\nThe material of tagged object is also relevant. Although RFID<\/a> can be used without line of sight, the RF waves will reflect from metal. Other materials also\u202fhave an effect on\u202ftags and on RF propagation. A specially designed tag, which we call a hard tag, is needed when the tag is placed directly on metal. They often consist of plastic structure where the special antenna design is embedded.\u202fConfidex\u202fhas developed the first ever on-metal label type tag, which utilizes the metal background to enhance performance. This differs from traditional UHF labels<\/a>, which should be placed as far away from the metal as possible.<\/p>\n
The effect of material should also be considered with traditional label type RFID tags<\/a>. For example, some plastics have notable de-tuning effect on tag antenna<\/a> although plastics are reasonably transparent to RF in general.\u202fAlso\u202fliquids are challenging as they absorb the RF waves and thus prevent the propagation.<\/p>\n
Physical Viewpoint<\/h4>\n
Tag size is obviously one parameter, which affects to tag selection. The tagged object itself or space reserved for the tag might constrain the physical size of a tag. In general, decreasing the tag size will decrease the performance.\u202fConfidex<\/a>\u202fhas developed a novel way of using special 3D-structures within antenna design. This concept is used in several products, which keeps them relatively small yet still maintains performance.<\/p>\n
Depending on the application, there can be several environmental conditions, which the tag is exposed to. If the tag needs to be outdoors or survive cleaning processes, an encapsulated tag or a special label with correct materials should be selected. The encapsulated tag is also the right choice if the tags<\/a> needs to survive mechanical impacts. In industrial applications, tags<\/a> may need to survive special processes that include the use of high temperatures or chemicals.\u202fConfidex<\/a>\u202fhas designed a wide selection of both\u202fhard encapsulated\u202ftags and special labels for surviving the wide variety of challenges common in many different industries.<\/p>\n
- An RFID<\/a> system makes it easier to respond to new circumstances as a result of information gained from the supply networks.<\/li>\n
- An RFID<\/a> system can increase productivity \u2013 as less monitoring is needed and both goods and information are handled more efficiently.<\/li>\n
- Reader<\/a> and tag<\/a> communication are not\u202forientation\u202fsensitive.<\/li>\n<\/ul>\n